Twisting machine



c w. HUBBARD. TWISTING MACHINE.

APPLICATION FILED MAR. 31, I920. RENEWED SEPT. 7, I922.

Patented Oct. 24-, 1922.

Patented @et. 24, L i-2:

ants rare is 7 ES W. EUBBD, GE WESTON, MASSACHUSETT TING MACHINE.

Application filed March 81, 1920, Serial Ito. $70,280. Renewed September 7, 1922. Serial No. 5%,802.

To all whom it may concern:

Be it known that I, CHARLES W. HUB- BARB, a citizen of the United States, residin at Weston, county of Middlesex, State 0 Massachusetts, have invented an Improvement in Twisting Machines, of which the following description, in connection with the accompanying drawing, is a speclfication, like characters on the drawing representing like parts.

This invention relates to twlstmg machines for twisting yarn and particularly to that type of twisting machine which is adapted to support and rotate a yarn mass and twist said yarn as it is withdrawn from the mass. The apparatus is adapted to handle am to be twisted which is laid or wound in a yarn mass after the manner described in my Patents No. 1,201,049, October 1c 1916, No. 1,232,686, July 10, 1917, and 1%. 1,258,411, March 5,1918, and is constructed so that it can be used in connection with a polisher, beaming machine, or other form of winder to deliver twisted yarn to such other machine for some further treatment. 4

The object of the invention is to provide an improved twisting apparatus of this type which is simple in its contruction and which has novel features all as will be more fully hereinafter set forth.

in order to give an understanding of my invention, 1 have illustrated in the drawings a selected embodiment thereof which will now be described, after which the novel features wild be pointed out in the appended claims.

In the drawings, Fig. 1 is a vertical sectional view of a twisting apparatus embodying my invention;

Fig. 2 is an enlarged section on the line 22, Fig. 1;

Fig. 3 is an enlarged section on the line 3-3, Fig. 1.

1 indicates a yarn mass containing the yarn 2 to be twisted This yarn mass is wound after the manner described in my above-mentioned patents so that the yarn 2 may be withdrawn from one end thereof in the direction of the axis of the yarn mass. The yarn mass is contained in a yarn container 3 which is herein shown as in the form of a tubular can and which is of the type which could-be used in connection with the apparatus described my above-mentioned patents to receive the yarn as it is wound. This yarn container 3 s supported for rotative movement about 1ts vertical axis on a step bearing 4. The twist ng of the yarn 2 is accomplished by rotating the yarn container 3 with its yarn mas 1 While the yarn is being withdrawn therefrom. This rotation of the am recelver is accomplished by means 0 a driv-.

ing member comprising a hollow shaft or sleeve 5 rotatably mounted in bearings 6 and adapted to be rotated by means of a driving pulley 7 fast thereon. This hollow shaft 5 has at its lower end a head 8 to which the upper end of the container 3 may be detachably secured. The upper end of the container is shown as having a ring or flange 9 thereon, and the head 8 is capshaped to fit over the ring 9. Said head may be locked to the ring so as to transmit rotative motion thereto by any suitable looking device. As herein shown, the ring 9 has a projection 10 thereon, adapted to enter anotch 11 in the cap. The yarn 2 which is to be twisted is withdrawn from the yarn mass through the hollow shaft 5, said shaft having a delivery opening 111 at its outer end. The yarn may be delivered to any suitable machine which is constructed to give the yarn the desired further treatment. Such other machine may be in the form of a polisher or beaming machine, or a winder adapted to wind the twisted yarn into another yarn mass.

I have not shown herein any complete machine for subsequently treating the yarn, but have merely illustrated two feed rolls 12 which will positively withdraw the yarn from the twisting apparatus and which may be part of, or considered as part of, the machine for giving the yarn subsequent treatment.

The rotation of the yarn receiver while the yarn is being withdrawn therefrom will, of course, twist the yarn between the rolls 12 and the yarn mass, and the amount of twist which is put into the yarn will depend upon the relation between the speed of rotation and the speed of the feed rolls 12.

In order to hold the yarn mass in shape during the rapid rotation of the yarn re= ceiver, I employ a presser-plate 13 which is adapted to rest on the yarn mass and is termed with a centr l delivery opening it through which the yarn is delivered. This presser plate is connected to a yarn- 1dmg tube which extends through the ead 8 and into the .nected to a ring 18 which surrounds the tube 15, this pressure shaft 5 and is slidable thereon.

The pressure of the presser plate on the am mass is that due to the weight of said plate and the weight of the yarn-guiding being sufficient to! hold the upper layers of yarn in position as the yarn is withdrawn. I have herein shown, the presser-plate as yieldmgly connected to the yarn-guiding tube so that the pressure on the yarn mam 1s a yielding one. For this purpose said late is provided with the sleeve 19 into wh ch the lower end of the yarn-guiding tube extends, said sleeve having a slot 20 to receive a pm 21 extendin from the yarn-guiding tube. The yarn-guiding tube is also provided with a shoulder 22 against which abuts a coiled spring 23 that surrounds the lower end of the yarn-guiding tube, the lower end of the spring resting against a flange 2a formed on the presser p ate circumjacent the opening 14. The presser-plate will thus have a. yielding pressure on the yarn mass which will allow it to yield if necessary to permit the free and ready withdrawal of the yarn.

The step bearin on which the yarn container is supporte is arranged to be moved vertically. It is shown in Fig. 1 in its elevated operative position which'it has when the yarn receiver is operatively connected to the driving member. By lowerin the hearing the yarn receiver can be withdrawn or separated from the head 8 of the driving member, thus permitting it to be removed when empty for the purpose of replacing it by a filled yarn receiver having untwisted yarn therein. The step bearing may be raised or lowered. in any suitable way wit out departing from the invention. I have herein shown it in the form of a plunger movable vertically in a cylinder 25 which is arranged to receive air under pressure through a pipe 26. When the cylinder is filled with compressed air the step bearing will be held in its raised position but by withdrawing the air the bearing will be lowered sufiiciently to permit the yarn container to be separated from the head 8.

When the yarn container is to be removed from the apparatus, the presser-plate will be raised up against the head 8. This can be done by the perator grasping th tion with a yarn container,

weasel upwardly on the shaft 5. The ring with suspended therefrom may be held in the raised position by suitable hooks or catches 27 which are secured to the upper bearing 6.

Various changes may made in the constructional details of the device without departing in any we from the invention covered by the appen ed claims.

I claim:

1. In a twisting apparatus, the combination with a yarn receiver, of a driving member in the form of a hollow shaft connected thereto, a yarn-guiding tube extending into and movable axially of the hollow shaft, a presser-plate carried by said tube and adapted to rest on the yarn mass, means for rotating the driving member with its attached container, and a driving connection between said shaft and yarn-guiding tube.

2. In a twisting apparatus, the combination with a yarn container containing the yarn to be twisted, of a hollow driving shaft extending axially of said container, means connecting said container to said shaft, a yarn-guiding tube extending into and movable axially of the hollow shaft, a presserplate yieldingly carried by said tube at its ower end and adapted to rest on the yarn mass in the yarn container, means for rotating the driving member, and means to rotate the yarn tube from the driving shaftwhile permitting longitudinal movement of said tube relative to the shaft.

3. In a twisting apparatus, the combination with a rotatable yarn container, of a driving shaft situated axially thereof and connected thereto, said shaft having a yarn delivery passage communicating With the yarn container, means to rotate said shaft, a presser plate container and sdaptm'i. to rest on the yarn mass therein, said plate having a. central yarn delivery opening, and means connecting said plate to said shaft.

4. In a twisting apparatus, the combination with a rotatable yarn container, of a driving shaft situated axially thereof and connected thereto, said shaft having a yarn delivery passage communicating with the yarn container, 9. spring-pressed presser plate movable axially of the yarn container and adapted to rest on the yarn mass, said plate having a central yam-delivery 0 ening, means to rotate said shaft, and a riving connection between said shaft and said presser plate.

5. In a twisting apparatus, the combinaof a hollow driving shaft situated axially thereof and movable axially of the yarn.

connected thereto, a yarn-guldin tube exyarn-guiding tube and operating in said slot, and a presser plate carried by the lower end of said tube and adapted to rest on the yarn mass in the yarn container.

6. In a twisting apparatus, the combination with a yarn contalner, of a hollow driving shaft situated axially thereof and connected thereto, a yarn-guiding tube extendlng mto and movable'axially of the hollow shaft, said shaft having alongitudinal slot,

a projection extending from said yarn-guiding tube and operating in said slot, a ring secured to said projection and encircling the tube, and a presser plate yieldingly connected to the lower end of the yarn-guiding tube and adapted to rest on the yarn mass.

In testimony whereof, I have signed my name to this specification.

CHARLES W. HUBBARD. 

